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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
159 lines
4.6 KiB
C++
159 lines
4.6 KiB
C++
// Created on: 1997-07-22
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// Created by: Laurent PAINNOT
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <DrawTrSurf_Triangulation2D.ixx>
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#include <Poly_Connect.hxx>
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#include <Poly_Triangle.hxx>
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#include <Poly_Array1OfTriangle.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <gp_Pnt2d.hxx>
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#include <Draw_Color.hxx>
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#include <Poly.hxx>
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#ifdef WNT
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#include <stdio.h>
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#endif
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//=======================================================================
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//function : DrawTrSurf_Triangulation2D
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//purpose :
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//=======================================================================
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DrawTrSurf_Triangulation2D::DrawTrSurf_Triangulation2D
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(const Handle(Poly_Triangulation)& T):
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myTriangulation(T)
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{
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// Build the connect tool
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Poly_Connect pc(T);
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Standard_Integer i,j,nFree, nInternal, nbTriangles = T->NbTriangles();
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Standard_Integer t[3];
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// count the free edges
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nFree = 0;
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for (i = 1; i <= nbTriangles; i++) {
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pc.Triangles(i,t[0],t[1],t[2]);
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for (j = 0; j < 3; j++)
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if (t[j] == 0) nFree++;
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}
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// allocate the arrays
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myFree = new TColStd_HArray1OfInteger(1,2*nFree);
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nInternal = (3*nbTriangles - nFree) / 2;
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myInternals = new TColStd_HArray1OfInteger(1,2*nInternal);
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TColStd_Array1OfInteger& Free = myFree->ChangeArray1();
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TColStd_Array1OfInteger& Internal = myInternals->ChangeArray1();
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Standard_Integer fr = 1, in = 1;
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const Poly_Array1OfTriangle& triangles = T->Triangles();
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Standard_Integer n[3];
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for (i = 1; i <= nbTriangles; i++) {
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pc.Triangles(i,t[0],t[1],t[2]);
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triangles(i).Get(n[0],n[1],n[2]);
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for (j = 0; j < 3; j++) {
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Standard_Integer k = (j+1) % 3;
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if (t[j] == 0) {
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Free(fr) = n[j];
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Free(fr+1) = n[k];
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fr += 2;
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}
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// internal edge if this triangle has a lower index than the adjacent
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else if (i < t[j]) {
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Internal(in) = n[j];
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Internal(in+1) = n[k];
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in += 2;
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}
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}
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}
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}
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//=======================================================================
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//function : Triangulation
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//purpose :
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//=======================================================================
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Handle(Poly_Triangulation) DrawTrSurf_Triangulation2D::Triangulation() const
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{
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return myTriangulation;
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}
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//=======================================================================
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//function : DrawOn
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//purpose :
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//=======================================================================
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void DrawTrSurf_Triangulation2D::DrawOn(Draw_Display& dis) const
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{
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// Display the edges
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Standard_Integer i,n;
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if (myTriangulation->HasUVNodes()) {
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const TColgp_Array1OfPnt2d& Nodes = myTriangulation->UVNodes();
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// free edges
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dis.SetColor(Draw_rouge);
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const TColStd_Array1OfInteger& Free = myFree->Array1();
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n = Free.Length() / 2;
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for (i = 1; i <= n; i++) {
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dis.Draw(Nodes(Free(2*i-1)),Nodes(Free(2*i)));
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}
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// internal edges
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dis.SetColor(Draw_bleu);
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const TColStd_Array1OfInteger& Internal = myInternals->Array1();
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n = Internal.Length() / 2;
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for (i = 1; i <= n; i++) {
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dis.Draw(Nodes(Internal(2*i-1)),Nodes(Internal(2*i)));
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}
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}
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}
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//=======================================================================
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//function : Copy
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//purpose :
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//=======================================================================
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Handle(Draw_Drawable3D) DrawTrSurf_Triangulation2D::Copy() const
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{
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return new DrawTrSurf_Triangulation2D(myTriangulation);
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}
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//=======================================================================
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//function : Dump
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//purpose :
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//=======================================================================
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void DrawTrSurf_Triangulation2D::Dump(Standard_OStream& S) const
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{
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Poly::Dump(myTriangulation,S);
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}
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//=======================================================================
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//function : Whatis
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//purpose :
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//=======================================================================
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void DrawTrSurf_Triangulation2D::Whatis(Draw_Interpretor& I) const
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{
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I << "triangulation";
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}
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